Screen-frame.



G. G. BUNGER.

SCREEN FRAME.

APPLICATION FILED MAYZO, I914.

hlm wmm Patented Apr. 11.3, 11915.

Witnesses Attorneys aroma e. Bunsen, or asms, nsas. SCREEN-FRAME.

Eiiaasaa'.

To all whom it may concern:

Be it known that I, GEORGE G. BUNGER, a citizen of the United States,residing at Eskridge, in the county of Wabaunsee and State of Kansas,have invented a new and useful Screen-Frame, of which t'hefollowin'g isa specification. I This invention relates to improvements in screenframes. I

An object of the present invention is to provide a novel andadvantageous form of frame for a screen which may be used as a window ordoor screen or in like capacities. A further object of the invention isto provide a metallic frame which will be simple in construction .andlight in weight and which is longitudinally and transversely adj ustableso as to conform to windows or door frames of different sizes.

A still further object of the invention is to provide a metallicframe'including hollow metallic members, each of which is formed from asingle strip of material bent into polygonal form with the overlappingedges arranged as the inner side walls of the member, and adapted toreceive the foraminous screen thereunder and to secure and hold the samein place, and at the same time allowing it to be readily removed and replaced from time to time.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawings accompanying this specifi'cation and forming a partthereof, the preferred embodiment of my invention is illustrated inwhich.-

Figure 1 is a front view in elevation of my improved screen frame. Fig.2 is a sectional view taken on the line 22 of Fig. 1. Fig. 3 is asectional view taken on the line 33 of Fig. 1. Fig. 4 is a perspectiveView of the upper cross bar. Fig. 5 is a perspective View of a portionof one of the side bars. Fig. 6 is a fragmental view in perspective of aportion of the center bar with its outlying angle braces which areformed integral therewith.

Referring to the drawings in which simi- Speciflcation of lettersPatent. I .lPa tentnedl Apr. 1T3, T9155. Application filed May 20, 1914.Serial No. 839,869-

ing parts throughout the several views, the screen frame includes a pairof spaced side bars 7, which are formedby folding a single length -ofmetal into box-like shape and with lar reference numerals indicatecorrespondthe overlapping edges 8 and 9 arranged as 4 the inner sidewalls of the frame. The upper and inlying edge 9 is serrated as at 10 soas to-constitute a grip for the :foraminous cloth or wire screen andhold the same in a stretched or taut condition. The extremities'of thebox-like sidebars are removed or open as at 11, as indicated by thedotted lines in Fig. 5.

Upper'and lower cross bars 14 are formed similar to the side bars, andinclude over-' lapping edges 8 and 9 and the serrated edge 10corresponding to the portions of the side bar represented by theanalogous and unprimed numerals. Each cross bar as illustrated in Fig.4, is provided with the bent end or tongue 15, the said. tongue or endwall being slightly narrower than the space intermediate the walls ofthe bar so that a space or groove 16 will be defined'between the edgesof the end wall 15 and adjacent portions of the bar. The cross bars arethus adapted to fit down over the side bars and to receive the upperextremities of the side bars within the open or removed portions 18, andin order to brace the entire structure and to hold the parts ininterlocked relation, the tongues 15 extend within the side bars as willbe apparent from reference to Fig. 3,

thus providing that the outer walls of the side bars will present acontinuous unbroken surface which is necessary for the proper working ofthe frame which can be used either for window or door screens.

The side bars 7 and upper and lower cross bars 14 are provided with thelongitudinally or axially extending slots 13 and 19 which register andreceive the securing bolt 20 therethrough. The nut 21 looks the boltrigidly in place and exerts the requisite force necessary for therigidity of the screen contact with and rigidly gri pi th .f 1 raminouscloth or wire screen 21. In order to brace the frame, the center crossbar 22 is provided and as illustrated in detail in Fig. 6, includes thefront member 23 withthe upturned flanged edges 24. Coacting with theforegoing, is the rear member 27 which is U-shaped in" construction andwith the side walls 28 serrated and extending between the flanges-24 ofthe front member. The front and rear members therefore, coact to form abox-like structure similar to the formation of .the side and upper andlower cross bars heretofore described. In order that the ends of thecentral cross bar may embrace and engage the side bars 7, the ends ofthe flanges 24 are removed as at 25 and the slots 26 provide forthesecurement of the cross bar to the side bars. The side walls 28 arecut adjacent the ends of the central cross bar and are bent outwardly toform. angle bracing members 29. The bracing members are twisted aboutthe longitudinal axes as at 30 soas to bring their outer extremities ina planecoincident with the plane of the front and rear, walls of theside bars to which they are secured. The. angle braces are provided withthe slots 31 which receive the bolts 33 therethrough, the latterextending through suitable transversely extending slots provided in theside bars 7. Suitablebolts 33 extend through the slot 26 of the sidebars and hold the frame in a rigid manner. A bolt 34 extends cent-rallythrough the cross bar' 22. anddraws the front and rear members thereof,into telescoped relation so that the serrated edges will rigidly gripthe foraminous cloth or wire screen.

The foregoing points out a metallic screen frame which will be light inweight and yet will embody a considerable amount of strength and therequisite rigidity. The box-like shape of the various side and crossbars in addition to providing a maximum strength with a minimum amountof material and therefore comprehending a minimum amount of weightdefines a bar adapted to receive and conceal the ends of the screen 21therein and due to the overlapping and serrated edges, rigidly hold thesame so-positioned. The longitudinal slots with which the various sidebars and'cross bars are provided, allow. the frame to be transverselyand longitudinally adjusted and the manner in which said bars areinterlocked preserves the continuity of the outer edges of both the sideand cross bars. This therefore eliminates all projections and insuresthe easy and smooth sliding or swinging movement of the frame withrelation to a door or window as the case may be. What is claimed is:

1. An article of the class described, comprising hollow side bars, andupper and lower cross bars, said cross bars being provided with endwalls spaced between the side walls of the cross bars, said end wallsfitting within the side bars, the side bars and cross bars beingprovided with overlapping inner edges, the inner of the overlapped edgesbeing provided with serrations adapted to grip a foraminous material.

2. An article of the class described, comprising hollow side bars, upperand lower cross bars, said cross bars being provided with end wallsspaced between the side walls of the cross bars, said end walls beingpositioned within the side bars, the side bars and cross bars beingprovided with overlapping inner edges, the inner of the overlapped edgesbeing provided with serrations adapted to grip a foraminous material,and means engaging the cross and side bars adjustably holding the sametogether.

3. An article of the class described, comprising hollow side bars, upperand lower cross bars, said cross bars being provided with end wallsspaced between the side walls of the cross bars, said end walls beingpositioned within the side bars, the side bars and cross barsbeingprovided with overlapping inner edges, the inner of the overlappededges provided with serrations adapted to grip a foraminous material,said side and cross bars provided with axial slots, and means extendingthrough said slots for holding the cross and side bars to gether andproviding for the longitudinal and transverse extension of the frame.

4. A screen frame comprising side and upper and lower cross bars, eachcross bar substantially box-like in cross section and provided withoverlapped edges upon the inner side walls, said overlapping edges beingprovided with serrations extending therealong and adapted to grip theends of a screen and house the same therein, the upper and lower crossbars being provided with tongue like end Walls extending within the sidebars, means for locking the side and upper and lower cross bars inadjusted positions, and a central cross bar provided with outlying anglebraces formed integral therewith and provided with means for grippingthe wire screen throughout substantially the entire length.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature in the presence of two witnesses.

GEORGE G. BUNGER.

Witnesses:

J. W. BUSENBARN, H. HERSHBEGER.

